NC0021474_Final Permit_20140606

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North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Mr. Dennis J. Hodge, Wastewater Director
City of Mebane
106 E. Washington St.
Mebane, NC 27302
Dear Mr. Hodge:
John E. Skvarla, III
Secretary
June 6, 2014
Subject: Issuance of NPDES Permit Renewal
NCO021474
Mebane W WTP
Alamance County
Facility Class IV
Division personnel have reviewed and approved your application for renewal of the subject
permit. Accordingly, we are forwarding the attached NPDES discharge permit. This permit
is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
Memorandum of Agreement between North Carolina and the U.S. Environmental Protection
Agency dated October 15, 2007 (or as subsequently amended).
We received the City of Mebane's comment letter dated May 13, 2014. The components list
was revised and the sand filters were replaced with cloth media filtration. The City's
request to reduce influent monitoring of BOD5 was reviewed. The Monitoring Frequency
Reduction for Exceptionally Performing Facilities applies to both the influent and effluent
monitoring requirements. When the City's BOD5 effluent sampling data meets the criteria
outlined in the Guidance regarding the reduction of monitoring frequencies the City can
request a reduction and permit modification for BOD5 sampling. At this time, BOD5 influent
and effluent monitoring will remain as a daily requirement.
As identified previously, the renewal permit contains the following significant changes from
your current permit:
• The City of Mebane's request for reduced sampling for NH3-N and TSS, from daily to twice per
week, in accordance with the Reduction of Monitoring Frequencies in NPDES Permits for
Exceptionally Performing Facilities (Oct. 22, 2012) was approved and the draft permit revised
accordingly. These reduced frequencies will remain in effect so long as the City's facility
continues to demonstrate exceptional treatment performance.
• No later than March 30, 2015, the City of Mebane shall begin reporting discharge monitoring
data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR)
internet application. [See Special Condition A. (I I.)]
1617 Mail Service Center, Raleigh, North Carolina 276991617
Phone: [phone] Internet: www.ncwaterquIity.org
An Fqual Opportunity 1 Affirmative Acticn Employer— Made in part by recycled paper
1

Mr. Dennis J. Hodge, Wastewater Director
June 6, 2014
Page 2 of 3
For information on eDMR, registering for eDMR and obtaining an eDMR user account, please
visit the following web page: http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr.
For information on EPA's proposed NPDES Electronic Reporting Rule, please visit the
following website: http://www2.epa. ovg /compliance/proposed-npdes-electronic-reportin -rule.
• The permit expiration date was changed to May 31, 2019 to allow five years before permit
renewal.
• An annual discharge load limit of 40,225 pounds per year (lb/yr) for total nitrogen has been
added to the permit in accordance with the Jordan Lake Nutrient Management Strategy rules.
Footnote #10 in Special Condition A.(1.) specifies an effective date of calendar year 2019 for
the total nitrogen limit, consistent with Session Law 2013-395 (Senate Bill 515).
• Effluent limitations and monitoring for Fluoride and Chloride were removed from the permit
because no reasonable potential to violate surface Water Quality Standard's (WQS) for these
parameters was found.
• Effluent monitoring for Total Copper was removed from the permit because no reasonable
potential to violate WQS's was found.
• An evaluation of Total Zinc effluent data showed a reasonable potential to violate WQS. Since
the WQS for Total Zinc is an action level standard, monitoring for Zinc was maintained in the
permit, at a reduced frequency of quarterly to coincide with toxicity testing.
• In accordance with the NPDES Implementation of the Statewide Mercury TMDL, five years of
mercury data was evaluated. The annual averages were less than both the calculated Water
Quality Based Effluent Limit and the Technology Based Effluent Limit. As a result, the Total
Mercury limit was removed and monitoring was reduced to the three annual Effluent Pollutant
Scans.
• In accordance with the 2012 Statewide Mercury TMDL, the requirement to perform a Mercury
Minimization Plan (MMP) was added to the permit. See MMP Special Condition A.(12.). Please
note that the MMP shall be developed by December 29, 2014 (within 180 days of the NPDES
Permit effective date). A sample MMP was developed through a stakeholder review process and
has been placed on the Division website for guidance at:
http://portal.ncdenr.org/web/wq/swp/ps/npdes.
• In accordance with Federal Regulations 40 CFR Part 122 a Total Nitrogen Reduction Schedule
containing annual milestones outlining the steps the City of Mebane will take to comply with
the Jordan Lake Wastewater Discharge Rule was added under Special Condition A.(4.).
• Special Condition A. (5.) Nitrogen Optimization has been updated to note the submission of the
plan by the City of Mebane.
• Some of the wording has changed in Special Condition A. (7.), Chronic Toxicity Permit Limit,
please review each paragraph carefully.
• Special Condition A. (8.) on the Effluent Pollutant Scan now designates the three years in which
the scans are to be performed (2015, 2016, and 2017) and that mercury must be sampled using
EPA Method 1631 E.

Mr. Dennis J. Hodge, Wastewater Director
June 6, 2014
Page 3 of 3
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty
(30) days following receipt of this letter. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless
such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the
legal requirements to obtain other permits which may be required by the Division of Water
Resources or permits required by the Division of Land Resources, the Coastal Area Management
Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Julie Grzyb by email
[e-mail]) or phone at [phone].
Sin erely,
Thomas A. Reeder, Director
Division of Water Resources, NCDENR
Enclosure: NPDES Permit NC0021474
cc: NPDES Unit
Central Files
Wirrston-Salem Regional Office / Surface Water Protection Section
e-copy:
EPA Region 4
PERCS Unit/ Sarah Bass
Winston-Salem Regional Office / Surface Water Protection Section
Winston-Salem Regional Office /DWR/Regional Engineer, Eric Hudson
ESS/ Aquatic Toxicity Unit, Susan Meadows
ESS/ Ecosystems Unit Carrie Ruhlman and Steve Kroger
Wastewater Operator Certification Group, Steve Reid

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Permit No. NC0021474
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
City of Mebane
is hereby authorized to discharge wastewater from a facility located at the
Mebane Wastewater Treatment Plant
635 Corrigidor Road (SR 1997)
southwest of Mebane
Alamance County
to receiving waters designated as Moadams Creek in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III, and IV hereof.
This permit shall become effective ......................................July 1, 2014.
This permit and authorization to discharge shall expire at midnight on ................................ May 31, 2019.
Signed this day ......................June 6, 2014.
in
T�mas A. Reeder, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 12

Permit No. NC0021474
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, Whether for operation or discharge are hereby revoked. As of
this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the
exclusive authorihj to operate and discharge from this facilihj arises under the permit conditions, requirements,
terms, and provisions included herein.
The City of Mebane
is hereby authorized to:
1. Continue to operate an existing 2.5 MGD wastewater treatment facility located at the Mebane
Wastewater Treatment Plant, on 635 Corrigidor Road (NCSR 1997), southwest of Mebane,
Alamance County, and consisting of:
• influent bar screen
• grit chamber
• dual aeration basins
• three final clarifiers
• cloth media filtration
• chlorine contact chamber
• dechlorination
• aerobic sludge digestors
2. Discharge from said treatment works at the location specified on the attached map into the
Moadams Creek, which are classified WS-V, NSW waters in the Cape Fear River Basin.
Page 2 of 12

Permit No. NCO021474
PART
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
(a.) During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges shall be
limited and monitored) by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location
Flow
2.5 MGD
Continuous
Recording
Influent or Effluent
Total Monthly Flow (MG)
Monitor & Report
Monthly
Rec. or Calc.
Influent or Effluent
BOD, 5 day, 20°C 3
(April 1 - October 31)
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent & Effluent
BOD, 5 day, 20°C (November
1 -March 31)3
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent & Effluent
Total Suspended Solids 3
30.0 mg/L
45.0 mg/L
Twice per week
Composite
Influent & Effluent
NH3 as N
(April 1 - October 31)
2.0 mg/L
6.0 mg/L
Twice per week
Composite
Effluent
NH3 as N
(November 1 - March 31)
4.0 mg/L
12.0 mg/L
Twice per week
Composite
Effluent
Dissolved Oxygen 4
Daily
Grab
Effluent
pH 5
Daily
Grab
Effluent
Temperature (°C)
Daily
I Grab
Effluent
Fecal Coliform
(geometric mean)
200/100ml-
400/100ml-
Daily
Grab
Effluent
Total Residual Chlorine 6
17 pg/L
Daily
Grab
Effluent
Conductivity (pmhos/cm)
Daily
Grab
Effluent
TKN
Monitor & Report (mg/L)
Weekly
Composite
Effluent
NO3-N + NO2-N
Monitor & Report (mg/L)
Weekly
Composite
Effluent
Total Nitrogen, (TN) 7
Monitor & Report (mg/L)
Weekly
Composite
Effluent
, 89 -
TN Load
Monitor & Report (lb/mo) [QM600]
40,225 (lb/ r)"o [QY600]
Monthly
Annually
Calculated
Effluent
Total Phosphorus, (TP)
Monitor & Report (mg/L)
Weekly
Composite
Effluent
TP Load e,9
Monitor & Report (lb/mo) [QM665]
5,056lb/yr [QY665]
Monthly
Annually
Calculated
Effluent
Total Zinc 11
Quarterly
Composite
Effluent
Chronic Toxicity 12
Quarterly
Composite
Effluent
Effluent Pollutant Scan 13
Monitor & Report
Footnote 13
Footnote 13
Effluent
All footnotes are listed on the following page.
Page 3 of 12

Permit No. NCO021474
Footnotes:
1. No later than March 30, 2015, begin submitting discharge monitoring reports electronically using NC DWXs
eDMR application system. See Special Condition A. (11.).
2. See Special Condition A. (2.) for instream sampling locations and requirements. Instream monitoring
requirements may be provisionally waived per Condition A. (2.).
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85% removal).
4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
5. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
6. The Division shall consider all effluent total residual chlorine values reported below 50 µg/L to be in
compliance with the permit. However, the Permittee shall continue to record and submit all values reported
by a North Carolina certified laboratory (including field certified), even if these values fall below 50 µg/L.
7. TN = TKN + NO3-N + NO2-N, where TN is total nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and
NO2-N are Nitrate and Nitrite Nitrogen, respectively.
8. TN or TP Load is the mass quantity of Total Nitrogen or Phosphorus discharged in a given period of time.
See Special Condition A. (10.), Calculation of Total Nitrogen or Total Phosphorus Loads.
9. Compliance with mass limits shall be determined in accordance with Special Condition A. (9.), Annual Limits
for Total Nitrogen or Total Phosphorus.
10. Per the Jordan Lake Wastewater Discharge Rule (15A NCAC 02B .0270) as modified by North Carolina
Session Laws 2011-394 (HB119) and 2013-395 (SB515), the annual mass Total Nitrogen limit shall be effective
beginning with calendar year 2019, unless the permittee has received by December 31, 2019, an authorization -
to -construct permit for construction, installation, or alteration of the treatment works for purposes of
complying with this limit, in which case the limit shall be effective beginning with calendar year 2021. See
special condition A. (4.) on the TN Compliance Schedule.
11. Total Zinc shall be sampled in conjunction with Chronic Toxicity testing
12. Chronic Toxicity (Ceriodaphnia) P/F at 90 % with testing in January, April, July and October (see Special
Condition A. (7.)).
13. The permittee shall perform three Effluent Pollutant Scans during the term of this permit. (See Special
Condition A. (8.)).
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts.
A.(2.) INSTREAM MONITORING REQUIREMENTS
(a.)
Parameter
Sample
Type
Frequency
Sampling
Locationl
Dissolved Oxygen
Grab
3/Week (June -Sept)
1/Week (October4May)
U, D1, D2, D3
Temperature
Grab
3/Week (June -Sept)
1/Week (OctoberU,
D1, D2, D3
Fecal Coliform
Grab
3/Week (June -Sept)
1Meek (OctoberU,
D1, D2, D3
Conductivity
Grab
3/Week (June -Sept)
1/Week (OctoberU,
D1, D2, D3
SAMPLE LOCATIONS
U - Upstream 100 feet of discharge, D1- Downstream at NCSR 1940, Moadams Creek,
D2 - Downstream at Back Creek at NCSR 1940 (June - Sept only)
D3 - Downstream at Back Creek at NC Highway 54.
Page 4 of 12

Permit No. NCO021474
(Continued A. (2.) INSTREAM MONITORING REQUIREMENTS
(b.) Instream monitoring requirements in this NPDES permit shall be provisionally waived so long as
the Permittee remains a member of the Upper Cape Fear River Basin Association and the
Association continues to function as approved by the Division and Environmental Management
Commission. If the Permittee does not participate in the Association or if the Association ceases to
function, the instream monitoring requirements in this permit become effective immediately; and
the Division may reopen this permit by administrative letter to establish additional instream
monitoring requirements, it deems necessary to adequately characterize the effects of the
discharges on water quality in the receiving stream.
A.(3.) NUTRIENT ALLOCATIONS
(a.) The following table lists the Total Nitrogen (TN) and Total Phosphorus (TP) allocations assigned
to, acquired by, or transferred to the Permittee in accordance with the Jordan Lake nutrient
management rule (T15A NCAC 02B .0270) and the status of each as of permit issuance. For
compliance purposes, this table does not supersede any TN or TP limit established elsewhere in
this permit or in the NPDES permit of a compliance association of which the Permittee is a Co-
Permittee Member.
Total Nitrogen Allocation
ALLOCATION AMOUNT (1)
ALLOCATION
SOURCE
DATE
STATUS
Delivered (lb/yr)
Discharge (lb/yr)
TYPE
Base
Assigned by Rule
8/11/09
22,526
40,225
Active
(T15A NCAC 02B .0270)
TOTAL
22,526
40,225
Active
Footnote:
(1) Nitrogen Transport Factor = 56%
Total Phosphorus Allocation
ALLOCATION AMOUNT (')
ALLOCATION
SOURCE
DATE
STATUS
Delivered (lb/yr)
Discharge (lb/yr)
TYPE
Base
Assigned by Rule
8/11/09
2,781
5,056
Active
(T15A NCAC 02B .0270)
TOTAL
2,781
5,056
Active
Footnote:
(1) Phosphorus Transport Factor = 55%
(b.) Any addition, deletion, or modification of the listed allocation(s) (other than to correct
typographical errors) or any change from Reserved to Active status of any of the listed allocations
shall be considered a major modification of this permit and shall be subject to the public review
process afforded such modifications under state and federal rules.
Page 5 of 12

Permit No. NCO021474
A.(4.) TOTAL NITROGEN REDUCTION SCHEDULE
(a.) The permittee shall comply with the. TN Load limit specified in Condition A.(1.) in accordance
with the following schedule:
April 30, 2015: Evaluate and submit a report to DWR on the need and interest in establishing
a compliance trading association for Jordan Lake.
April 30, 2016: Submit a nutrient removal optimization report to DWR for the Mebane
W WTP
April 30, 2017: Submit a nutrient reduction plan to DWR for review and approval. The plan
should project and accommodate anticipated loadings through 2027.
April 30, 2018: Submit a nutrient removal optimization report to DWR for the Mebane
WWTP
January 1, 2019/2021: Beginning with CY2019, comply with total nitrogen targets the TN Load
limit listed in Condition A.(1.); except that, if the permittee acquires an
authorization -to -construct permit required to meet that limit by December 31,
2019, it shall comply with the limit no later than CY 2021.
All submissions shall be sent to: NCDENR/ DWR/ NPDES Programs
Attn: Jordan Lake Watershed Coordinator
1617 Mail Service Center
Raleigh, NC 27699-1617
A.(5.) NITROGEN OPTIMIZATION
On February 5, 2010, the City of Mebane submitted a plan to optimize the reduction of nitrogen in its
wastewater discharges. It is expected that the City of Mebane will implement these measures and
continue to evaluate its treatment facilities and operational processes to make reasonable efforts to
reduce nitrogen discharges until process improvements are completed.
A.(6.) NUTRIENT MONITORING REOPENER
Pursuant to N.C. General Statute Section 143-215.1 and the implementing rules found in Title 15A of
the North Carolina Administrative Code, Subchapter 2H, specifically, 15A NCAC 2H.0112(b) (1) and
2H.0114(a), and Part II, Sections B-12 and B-13 of this permit, the Director of DWR may reopen this
permit to require supplemental nutrient monitoring of the discharge. The additional monitoring will
be to support water quality modeling efforts within the Cape Fear River Basin, and shall be consistent
with a monitoring plan developed jointly by the Division and affected stakeholders.
Page 6 of 12

Permit No. NCO021474
A.(7.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 90%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in
the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or
subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised- December 2010) or subsequent versions. The tests will be performed during the months of
January, April, July, and October. These months signify the first month of each three month toxicity
testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during
representative effluent discharge and shall be performed at the NPDES permitted final effluent
discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV
below the permit limit, then multiple -concentration testing shall be performed at a minimum, in
each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure" (Revised -December 2010) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the parameter
code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT-3
(original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved
designate signature. Total residual chlorine of the effluent toxicity sample must be measured and
reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the
report with the notation of "No Flow' in the comment area of the form. The report shall be submitted
to the Water Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month. Assessment of toxicity compliance is based on
the toxicity testing quarter, which is the three month time interval that begins on the first day of the
month in which toxicity testing is required by this permit and continues until the final day of the third
month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls,
shall constitute an invalid test and will require immediate follow-up testing to be completed no later
than the last day of the month following the month of the initial monitoring.
Page 7 of 12

Permit No. NCO021474
A.(8.) EFFLUENT POLLUTANT SCAN
(a.) The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed
below. One scan must be performed_in each of the following years: 2015, 2016, and 2017.
Analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive
to determine whether parameters are present in concentrations greater than applicable standards
and criteria. Samples should be collected with one quarterly toxicity test each year, and must
represent seasonal variation [i.e. do not sample in the same quarter every year]. Unless otherwise
indicated, metals shall be analyzed as "total recoverable"
Ammonia (as N)
Chlorine (total residual, TRC)
Dissolved oxygen
Nitrate/Nitrite
Total Kjeldahl nitrogen
Oil and grease
Total Phosphorus
Total dissolved solids
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury (EPA Method 1631E)
Trans-1,2-dichloroethylene
1,1-dichloroethylene
1,2-dichloropropane
1,3-dichloropropylene
Ethylbenzene
Methyl bromide
Methyl chloride
Methylene chloride
1,1,2,2-tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-trichloroethane
1,1,2-trichloroethane
Trichloroethylene
Vinyl chloride
Acid -extractable compounds:
P-chloro-m-cresol
Nickel
2-chlorophenol
Selenium
2,4-dichlorophenol
Silver
2,4-dimethylphenol
Thallium
4,6-dinitro-o-cresol
Zinc
2,4-dinitrophenol
Cyanide
Total phenolic compounds
Volatile organic compounds:
Acrolein
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
2-chloroethylvinylether
Chloroform
Dichlorobromomethane
1,1-dichloroethane
1,2-dichloroethane
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Phenol
2,4,6-trichlorophenol
Base -neutral compounds:
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
Bis (2-chloroethyl) ether
Bis (2-chloroisopropyl) ether
Bis (2-ethylhexyl) phthalate
4-bromophenyl phenyl ether
Butyl benzyl phthalate
2-chloronaphthalene
4-chlorophenyl phenyl ether
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenzo(a,h)anthracene
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
3,3-dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclo-pentadiene
Hexachloroethane
Indeno (1,2,3-cd) pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-nitrosodimethylamine
N-nitrosodiphenylamine
Phenanthrene
Pyrene
1,2,4-tichlorobenzene
(b.) Reporting. Test results shall be reported on DWR Form- A MR-PPA1(or in a form approved by
the Director) by December 31st of each designated sampling year. The report shall be submitted
to the following address: NCDENR/DWR/Central Files,1617 Mail Service Center, Raleigh,
North Carolina 27699-1617.
Page 8 of 12

Permit No. NC0021474
A.(9.) ANNUAL LIMITS FOR TOTAL NITROGEN OR TOTAL PHOSPHORUS
(a.) Total Nitrogen (TN) and Total Phosphorus (TP) allocations and load limits for NPDES
dischargers in the Jordan Lake watershed are annual limits and apply on a calendar year basis.
(b.) For any given calendar year, the Permittee shall be in compliance with the annual TN (or TP)
Load limit in this Permit if:
(i.) the Permittee's annual TN (or TP) Load is less than or equal to the effective limit, or
(ii.) the Permittee is a Co-Permittee Member of a compliance association.
(c.) The TN (or TP) Load limit in this Permit may be modified as the result of allowable changes in
the Permittee's allocations.
(i.) Allowable changes include those resulting from purchase of TN (or TP) allocation from an
authorized mitigation banker, the Ecosystem Enhancement Program, or other source
allowed under applicable regulations; purchase, sale, trade, or lease of allocation between
the Permittee and other dischargers; regionalization; and other transactions approved by the
Division.
(ii.) The Permittee may request a modification of the TN (or TP) Load limit in this Permit to
reflect allowable changes in its allocation(s).
(A) Upon receipt of timely and proper application, the Division will modify the permit as
appropriate and in accordance with state and federal program requirements.
(B) Changes in TN (or TP) limits become effective on January 1 of the year following
permit modification. The Division must receive application no later than August 31 for
changes proposed for the following calendar year.
(iii.) Any requests for modification should be sent to:
NCDENR/ DWR/ NPDES Programs
Attn: Jordan Lake Watershed Coordinator
1617 Mail Service Center
Raleigh, NC 27699-1617
(d.) If the Permittee is a member, and co-permittee of an approved compliance association on January
1 of a given year, its TN and TP discharges during that year are governed by that association's
group NPDES permit and the limits therein.
(i.) The Permittee shall be considered a Co-Permittee Member for any given calendar year in
which it is identified as such in Appendix A of the association's group NPDES permit.
(ii.) Association roster(s) and members' TN and TP allocations will be updated annually and in
accordance with state and federal program requirements.
(iii.) If the Permittee intends to join or leave a compliance association, the Division must be
notified of the proposed action in accordance with the procedures defined in the
association's NPDES permit.
(A) Upon receipt of timely and proper notification, the Division will modify the permit as
appropriate and in accordance with state and federal program requirements.
(B) Membership changes in a compliance association become effective on January 1 of the
year following modification of the association's permit.
(e.) The TN and TP monitoring and reporting requirements in this Permit remain in effect throughout
the term of the Permit and are not affected by the Permittee's membership in a compliance
association.
Page 9 of 12

Permit No. NCO021474
A.(10.) CALCULATION OF TOTAL NITROGEN OR TOTAL PHOSPHORUS LOADS
(a.) The Permittee shall calculate monthly and annual TN Loads as follows:
(i.) Monthly TN (or TP) Load (lb/mo) = TN (or TP) x TMF x 8.34
where:
TN or TP = the average Total Nitrogen or Total Phosphorus concentration
(mg/L) of the composite samples collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the
month (MG/mo)
8.34 = conversion factor, from (mg/L x MG) to pounds
(ii.) Annual TN (or TP) Load (lb/yr) = Sum of the 12 Monthly TN (or TP) Loads for the calendar
year
(b.) The Permittee shall report monthly Total Nitrogen and Total Phosphorus results (mg/L and
lb/Trio) in the appropriate discharge monitoring report for each month and shall report each
calendar year's results (lb/yr) with the December report for that year.
A.(11.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs)
and specify that, if a state does not establish a system to receive such submittals, then permittees must
submit DMRs electronically to the Environmental Protection Agency (EPA). The Division anticipates
that these regulations will be adopted and is beginning implementation in late 2013.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
(a.) Reporting [Supersedes Section D. (2.) and Section E. (5.) (a)]
Beginning no later than March 30, 2015, the permittee shall begin reporting discharge monitoring
data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR)
internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month
and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. Until such time that the
state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation
(CROMERR), permittees will be required to submit all discharge monitoring data to the state
electronically using eDMR and will be required to complete the eDMR submission by printing,
signing, and submitting one signed original and a copy of the computer printed eDMR to the
following address:
NC DENR / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 10 of 12

Permit No. NCO021474
(Continued, A.(11.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access, then a temporary waiver from the NPDES electronic reporting requirements
may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1,
1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be
submitted to the mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the date
the facility would be required under this permit to begin using eDMR. Temporary waivers shall
be valid for twelve (12) months and shall thereupon expire. At such time, DMRs shall be
submitted electronically to the Division unless the permittee re -applies for and is granted a new
temporary waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic
reporting requirements is found on the following web page:
http://portal.ncdenr.org/web/wq/adniin/bog/ipu/ednir
Regardless of the submission method, the first DMR is due on the last day of the month
following the issuance of the permit or in the case of a new facility, on the last day of the month
following the commencement of discharge.
(b.) Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) (d)]
All eDMRs submitted to the permit issuing authority shall be signed by a person described in
Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in
Part II, Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for
eDMR reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user. account, please
visit the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.221. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I certifij, under penalty of lazv, that this document and all attachments zvere prepared under my direction
or supervision in accordance zvith a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons Who manage the system,
or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knozvledge and belief, true, accurate, and complete. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for knozving
violations."
(c.) Records Retention [Supplements Section D. (6.)]
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from the
date of the report. This period may be extended by request of the Director at any time [40 CFR
122.41].
Page 11 of 12

Permit No. NC0021474
A.(12.) MERCURY MINIMIZATION PLAN (MMP)
The permittee shall develop and implement a mercury minimization plan during this permit term. The
MMP shall be developed by December 29, 2014, and shall be available for inspection on -site. A sample
MMP was developed through a stakeholder review process and has been placed on the Division
website for guidance (hft://portal.ncdenr.org/web/­­WA under Model Mercury
Minimization Plan). The MMP should place emphasis on identification of mercury contributors and
goals for reduction. Results shall be summarized and submitted with the next permit renewal.
Page 12 of 12

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